import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		String ans = scan.next();
		boolean flag = true;
		while(flag) {
			String t = scan.next();
			if(t.equals(ans)) {
				System.out.println("unlocked");
				flag = false;
			}else {
				System.out.println("locled");
			}
		}
		scan.close();
	}
}